PDF malware analysis — malicious · 204fda55629e051d

MALICIOUS

PDF

54.7 KB Created: 2020-07-24 00:56:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 73c2056d9dfdc6e6d09568423b9151e8 SHA-1: 97b930e1d56fd383ba12498b11629fe86b90fb45 SHA-256: 204fda55629e051df12ef18143ee1d690ce8c5d739afe8bdb1ccc542ea501f2c

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, a significant portion of which point to a link farm hosted on cdn.shopify.com. One of these links, ttraff.ru, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create SEO-optimized content, which aligns with the link farm heuristic. The primary attack pattern involves luring users through these links to potentially malicious destinations.

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://ttraff.ru/wb?keyword=aterrizaje%20en%20la%20luna%20tintin%20pdf
- http://files.biggsbassethounds.com/uploads/1/3/1/8/131857071/84fb7a2093dbc.pdf
- http://files.roundupmontana.net/uploads/1/3/0/8/130813146/divawori.pdf
- http://files.reikiinsight.com/uploads/1/3/2/7/132712119/vimifap_rugexes_gamujalidet.pdf
- http://files.anglersarsenaltx.com/uploads/1/3/1/8/131871725/9375144.pdf
- http://files.reikiinsight.com/uploads/1/3/2/7/132712119/vimifap_rugexe
- https://cdn.shopify.com/s/files/1/0431/3533/6605/files/11284255776.pdf
- https://cdn.shopify.com/s/files/1/0431/5847/0813/files/48547618271.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdf
- https://cdn.shopify.com/s/files/1/0430/0357/6481/files/mogodipalefumexiteza.pdf
- https://cdn.shopify.com/s/files/1/0433/0913/8075/files/37921802862.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizuvesadumewagetikuxumut.pdf
- https://cdn.shopify.com/s/files/1/0434/2949/4936/files/72826620541.pdf
- https://cdn.shopify.com/s/files/1/0427/6623/7852/files/30239851881.pdf
- https://cdn.shopify.com/s/files/1/0431/2032/8853/files/69617634282.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96951977507.pdf
- https://cdn.shopify.com/s/files/1/0428/7083/3319/files/38337861103.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdf
- https://cdn.shopify.com/s/files/1/0434/0996/5212/files/70091024970.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000988e.bin` `bfcc1eaab2da8737eae9d93f29c31ed387f141f591afaca3306efc03d2ed5c58`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x988E	4744 bytes
`font_01_sfnt_off0000a8b9.bin` `0f8d9fd84a1c0ebc32fc057a877545442b5b7d299552339bcc131f7ef619fd2b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA8B9	10808 bytes

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